Internal-combustion engine



C. E. REES.

INTERNAL COMBUSTION ENGINE. APPLICATION mm APR. 21, 1920.-

1,382,236. Patented June2l, 1921;

INVENTOR aZ'arcvrc' e li/ Eees,

UNITED STATES CLARENCE E. REES, OF SAN DIEGO, CALIFORNIA.

INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented June 21, 1921.

Application filed April 21, 1920. Serial No. 375,519.

To all whom it may concern:

Be it known that I, CLARENCE E. REES, a citizen of the UnitedStates, residing at San Diego, in the county of San Diego and State of California, have invented certain new and useful Improvements in Internal- Combustion Engines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to internal combustion engines and more particularly to a novel valve structure therefor and it has for its object to provide a continuously rotating valve so correlated with the engine cylinder that the valve may be kept effec-.

tively cooled, may be driven from a point outside of the engine and will have its ports so located that the scavenging of the cylinder may be effectively accomplished.

It is a further objectof the invention to so correlate the parts that an anti-friction bearing for the valve may be had and the valve may be continuously and automatically lubricated.

Further objects and advantages of the invention will be set forth in the detailed description which now follows.

In the accompanying drawing Figure 1 is a vertical sectional view of a part of an internal combustion engine having the invention applied thereto;

Fig. 2 is the detailed side view of the valve;

Fig. 3 is a detailed vertical sectional view of the valve; and

Fig. 4 is a partial plan view of the valve.

Like numerals designate corresponding parts in all of the figures of the drawing.

In the drawing 5 designates the engine cylinder, 6 the piston and 7 the connecting rod. A water jacket 8 is spaced from the cylinder and presents an annular, upwardly facing shoulder at 9. A neck extension 10 projecting upwardly from the top of the cylinder has a threaded'seat 11 at its bottom for the reception of a spark plug 12. The neck extension projects upwardly from a web 13 which in conjunction with a spaced web 14 constitutes the cylinder head. The

web 14 carries a sleeve 15 which surrounds the neck extension 10 but lies in spaced relation thereto to form the annular water channel 16 therebetween. The neck exten sion is internally threaded at 17 for the receptacle of a closure plug 18 and the sleeve 15 is externally threaded at 18 for the reception of a hose connection 19 which serves to carry oif the water from the water jacket of the engine. The cylinder head further comprises the vertical web 20 constituting a downward extension of the web 14, said web ly ng in spaced relation to the wall of the cylinder andv the space 21 therebetween forming a continuation of a space 22 which lles between the webs 13 and 14 and is in turn a continuation of the annular channel 16. At the bottom of the web 20 the space 21 opens into an enlarged part 24.0f the space 25 which lies between the wall of the cylinder 5 and the water jacket 8. About the lower edge of the web 20 there is dis posed'an out turned shoulder 26 which is stepped to provide a ledge 27.

A valve casing 28 comprising the inner web 29 and the outer web 30 having the water space 31 between themis provided with an out turned flange32 that is secured by cap screws 33 to the shoulder 9. The lower edge of the inner web 29. of the valve casing is adapted to have a water tight seating on the step 27 of the ledge 26. These parts have been shown slightly separated in the drawing in orderto preserve the clearness of the drawing but it will be under stood that in practice a gasket will be employed between the contacting surfaces in the usual and well known way.

A valve of inverted cup form comprising the vertical annular wall 34, a horizontal top wall 35 and vertical neck extension 36 is provided with the beveled surfaces 37 and 38 adapted to engage with ball bearings 39 and 40, the latter in turn being engaged by cone 41 and lock nut 42 which engage the externally threaded portion 18 of the sleeve 15. The upper surface of the top 35 of the valve contacts with the under surface of the valve casing. The under surface of the top 35 contacts with the web 14. The inner surface of the vertical wall 34 has close contact with the web 20 while the outer surface of said vertical wall has close contact with the web 29 of the valve casing. It will thus be seen that the valve is water jacketed both upon its interior and exterior; that is, a water space is disposed outwardly of the valve and a water space is disposed between the valve and the engine cylinder. Furthermore the engine cylinder is water jacketed all around and over its entire head. The valve 34 is provided with oblique oil grooves 44 which pick up the oil and discharge it at the top of the valve.

The top of the valve is provided with an annular oil groove 45 and ports 46 lead from the annular oil groove through the top of the valve and discharge the oil betweenithe underside of the top of the valve and the upper surface of the web 14. Thusit will be seen that the oil supplied to the valve is kept in circulation so that all parts of the valve will receive adequate lubrication.

The valve is provided with the port 47 which, during the rotation of the valve any rotative part of .the enginesuch as the crank shaft, not shown.

.I am iawareof the fact'that it has heretofore been proposed to provide rotary valves having ports adapted to come into registry with ports formed in the wall of the .engine cylinder; however it will be noted that the present invention provides simpleandefi'ective means for cooling both the valve and the entireupper part of the cylinderso that any'possibility of warping or binding of 'thevalve is avoided and it will also be seen that the'proportions and shape ofthe'pa-rts are such tha't undue increase in the compressionspace of the engine is guarded'against. 7

rIt'is .to be understoodthatthe invention is "not limited to the precise construction set forth but that it includes within its purview whatever changes fairly come within either the terms or the spirit of the appended claim. I r Having described my invention what I claim is: y

A' device of the character described comprising a cylinder having a head proper and a water jacket comprising a substantially horizontal wall overlying the top of the cylinder, a vertical wall extending downwardly along side the cylinder and an out turned ledge at the bottom of the vertical wall, a water vjacket for the cylinder having an outwardly flaring upper portion, a valve casing having spaced walls the outer of which makes water tight contact with the outwardly flaring portion of the water jacket of the cylinder and theinnerof which makes water tight contact with saidledge a rotative valve lying between and contacting with the valve casing and the water jacket of the cylinder head, a vertical tubular extension from the water jacket of the cylinder head, a vertical extension carried by the valve, anti-frictionbearings between said vertical extensions, a driving ielement upon the vertical extension of the, valve, a verti cal tubular extension'from the cylinder head which lies insideofthe vertical tubular extension from the water-jacket of the cylin der head whichprojects"into the cylinder. In testimony whereof I hereunto aflix my signature.

. CLAREN OE -E. iinnsif 1 

